solvent-free conditions is explained. The prepared amidoalkyl naphthols were converted to 1,3-oxazines by Vilsmeier reagent in the presence of FeCl3/SiO2 nanoparticles. This method provides a novel route to synthesis amidoalkyl naphthol and 1,3-oxazine derivatives in terms of good yields, short reaction times, and recyclable catalyst. Graphical abstract
摘要解释了在无热溶剂的条件下,在
二氧化硅纳米颗粒负载的
三氯化铁存在下制备酰胺基烷基
萘的有效而现代的方法。在FeCl 3 / SiO 2纳米颗粒的存在下,通过Vilsmeier试剂将制备的酰胺基烷基
萘酚转化为1,3-恶嗪。从产率高,反应时间短和可回收催化剂的角度来看,该方法提供了合成酰胺烷基
萘酚和1,3-恶嗪衍
生物的新途径。 图形概要